CN202955296U - 自动泄压阀 - Google Patents
自动泄压阀 Download PDFInfo
- Publication number
- CN202955296U CN202955296U CN 201220625485 CN201220625485U CN202955296U CN 202955296 U CN202955296 U CN 202955296U CN 201220625485 CN201220625485 CN 201220625485 CN 201220625485 U CN201220625485 U CN 201220625485U CN 202955296 U CN202955296 U CN 202955296U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing gasket
- spring
- hole
- decompression
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound 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O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Abstract
一种自动泄压阀，包括设置在阀体上的阀盖，阀体上设置有与阀腔相通的泄压孔和出水孔，阀腔内设置有通过水压自动打开或关闭泄压孔的泄压机构。泄压机构包括设置在阀腔内的密封垫和弹簧，该弹簧的一端与密封垫的底部相接，弹簧的另一端压接在阀腔的内壁上，密封垫的底部设置有与出水孔相通的过水孔，阀盖上设置有进水孔，该进水孔与阀腔相通且位于密封垫的上方，泄压孔位于密封垫的下方。过水孔的流通面积＜进水孔的流通面积。泄压孔位于密封垫的侧下方。密封垫呈碗状或筒状。弹簧为柱状弹簧或板状弹簧。本实用新型相对于现有自动泄压阀，具有结构简单合理、操作灵活、零部件少、制作成本低的特点。
Description
自动泄压阀
技术领域
[0001 ] 本实用新型涉及一种自动泄压阀。
背景技术
[0002] 中国专利文献号CN201053521Y于2008年4月30日公开了一种自动泄压阀，阀体上设有阀腔及连通阀腔的进水口和出水口，阀腔内设有一个可上下运动的阀芯来关闭和打开回流通道，阀芯包括阀塞及与其相接的弹簧，进水口设在阀腔的一端，出水口设在与进水口相对的阀腔另一端，中空阀塞设在进水口位置；当高压力的水将回流阀针顶起时，阀芯上端堵头堵死阀针内的阀腔，从而关闭回流通道；当水压降低时利用回流阀芯自身的重量使回流阀阀芯掉下来打开回流通道，阀塞的上端到通道口的距离大于阀芯的长度。这种自动泄压阀的结构比较简单，但是，对回流阀针的自身重量要求较精准，对外界因素要求比较高，且因为结构原因限制只适用于低压力环境，成品的合格率也比较低，难于满足用户的要求。
实用新型内容
[0003] 本实用新型的目的旨在提供一种结构简单合理、操作灵活、零部件少、制作成本低的自动泄压阀，以克服现有技术中的不足之处。
[0004] 按此目的设计的一种自动泄压阀，包括设置在阀体上的阀盖，阀体上设置有与阀腔相通的泄压孔和出水孔，其结构特征是阀腔内设置有通过水压自动打开或关闭泄压孔的泄压机构。
[0005] 所述泄压机构包括设置在阀腔内的密封垫和弹簧，该弹簧的一端与密封垫的底部相接，弹簧的另一端压接在阀腔的内壁上，密封垫的底部设置有与出水孔相通的过水孔，阀盖上设置有进水孔，该进水孔与阀腔相通且位于密封垫的上方，泄压孔位于密封垫的下方。
[0006] 所述过水孔的流通面积< 进水孔的流通面积。
[0007] 所述泄压孔位于密封垫的侧下方。
[0008] 所述密封垫呈碗状或筒状。
[0009] 所述密封垫为硅胶或金属制成。
[0010] 所述弹簧为柱状弹簧或板状弹簧。
[0011] 本实用新型采用上述的技术方案后，在水压的作用下，通过密封垫和弹簧的伸缩来实现关闭或打开泄压孔，从而达到自动泄压的目的。
[0012] 当水泵工作时，在水压的作用下，当水泵泵出来的水经过阀盖上的进水孔，进入位于阀腔内的密封垫中时，由于密封垫上的过水孔很小，而过水孔的流通面积<进水孔的流通面积，从而在阀腔内产生水压，也就是在密封垫内产生水压，使密封垫变形，故而在克服弹簧的弹力及密封垫的伸缩力的作用下，密封垫向下运动，从而封住位于密封垫下方的泄压孔，正常情况下的水就从阀体上的出水孔流出；当水泵停止工作时，密封垫内的压力迅速降低。密封垫在自身回弹力及弹簧弹力的作用下向上运动，泄压孔被打开，实新自动泄压。[0013] 本实用新型相对于现有自动泄压阀，具有结构简单合理、操作灵活、零部件少、制作成本低、泄压效果好的特点。
附图说明
[0014] 图1为本实用新型一实施例结构示意图。
[0015] 图2为本实用新型组装后打开时的轴向剖视结构示意图。
[0016] 图3为本实用新型组装后关闭时的轴向剖视结构示意图。
[0017] 图中:1为阀盖,1.1为进水孔,2为密封垫,2.1为过水孔,3为弹簧,4为阀体,4.1为泄压孔，4.2为出水孔。
具体实施方式
[0018] 下面结合附图及实施例对本实用新型作进一步描述。
[0019] 参见图1-图3，本自动泄压阀，包括设置在阀体4上的阀盖1，阀体4上设置有与阀腔相通的泄压孔4.1和出水孔4.2，阀腔内设置有通过水压自动打开或关闭泄压孔4.1的泄压机构。
[0020] 所述泄压机构包括设置在阀腔内的密封垫2和弹簧3，该弹簧3的一端与密封垫2的底部相接，弹簧3的另一端压接在阀腔的内壁上，密封垫2的底部设置有与出水孔4.2相通的过水孔2.1，阀盖I上设置有进水孔1.1，该进水孔1.1与阀腔相通且位于密封垫2的上方，泄压孔4.1位于密封垫2的下方。
[0021] 在本实施例中，泄压孔4.1位于密封垫2的侧下方；过水孔2.1的流通面积<进水孔1.1的流通面积；密封垫2呈碗状或筒状。弹簧3为柱状弹簧或板状弹簧；密封垫2既可以采用硅胶制成，也可以采用金属制成。
Claims (7)
1.一种自动泄压阀，包括设置在阀体(4)上的阀盖(1)，阀体(4)上设置有与阀腔相通的泄压孔(4.1)和出水孔(4.2)，其特征是阀腔内设置有通过水压自动打开或关闭泄压孔(4.1)的泄压机构。
2.根据权利要求1所述的自动泄压阀，其特征是所述泄压机构包括设置在阀腔内的密封垫(2)和弹簧(3)，该弹簧(3)的一端与密封垫(2)的底部相接，弹簧(3)的另一端压接在阀腔的内壁上，密封垫(2)的底部设置有与出水孔(4.2)相通的过水孔(2.1)，阀盖(I)上设置有进水孔(1.1)，该进水孔(1.1)与阀腔相通且位于密封垫(2)的上方，泄压孔(4.1)位于密封垫(2)的下方。
3.根据权利要求2所述的自动泄压阀，其特征是所述过水孔(2.1)的流通面积<进水孔(1.0的流通面积。
4.根据权利要求2所述的自动泄压阀，其特征是所述泄压孔(4.1)位于密封垫(2)的侧下方。
5.根据权利要求2至4任一所述的自动泄压阀，其特征是所述密封垫(2)呈碗状或筒状。
6.根据权利要求5所述的自动泄压阀，其特征是所述密封垫(2)为硅胶或金属制成。
7.根据权利要求6所述的自动泄压阀，其特征是所述弹簧(3)为柱状弹簧或板状弹簧。
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